Form 4: Guidewire Software CEO Sells Shares Under 10b5-1 Plan
Statement of Changes in Beneficial Ownership
Guidewire Software's CEO, Michael George Rosenbaum, has sold 1,200 shares of common stock as part of a pre-arranged trading plan.
Summary
- Michael George Rosenbaum, CEO of Guidewire Software, Inc., sold 1,200 shares of common stock on May 11, 2026.
- The sale was executed at a price of $136.38 per share.
- This transaction was made under a Rule 10b5-1 trading plan adopted by Mr. Rosenbaum on October 14, 2025.
- Following the transaction, Mr. Rosenbaum beneficially owns 211,606 shares of common stock.
Sentiment
Score: 5
Explanation: StockSavvy.ai views this as a neutral filing, as the sale is conducted under a pre-established trading plan, indicating a planned divestment rather than a reaction to company performance.
Negatives
- CEO sale of company stock, though executed under a pre-planned trading strategy, can sometimes be perceived negatively by the market.
Future Outlook
No forward-looking statements or guidance are present in this filing.
Industry Context
StockSavvy.ai notes that insider sales under Rule 10b5-1 plans are common and designed to avoid accusations of insider trading. However, the market often scrutinizes such sales, especially when made by senior executives.
Corporate Governance
| Change Type | Description | Effective Date | Impact Assessment |
|---|---|---|---|
| 10b5-1 Trading Plan | Sale of securities executed under a pre-arranged trading plan designed to comply with Rule 10b5-1(c) affirmative defense conditions. | 10/14/2025 | Ensures compliance with insider trading regulations for planned stock transactions. |
Stakeholder Impact
- Shareholders: The sale by the CEO may lead to short-term market scrutiny, but the 10b5-1 plan mitigates concerns about insider trading. The remaining beneficial ownership by the CEO is substantial.
Key Dates
| Date | Description |
|---|---|
| 10/14/2025 | Date the Rule 10b5-1 Trading Plan was adopted by Michael George Rosenbaum. |
| 05/11/2026 | Date of the transaction (sale of common stock). |
| 05/12/2026 | Date the Form 4 was signed by the attorney-in-fact. |
Keywords
Guidewire Software, GWRE, Form 4, Insider Trading, 10b5-1 Plan, CEO, Stock Sale
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